Schooling Silver Dollars vs Crowding

Astaroth
  • #1
I just inherited a fish tank from a friend who is moving (30g, 1 silver dollar, 3 rainbow sharks, 1 small sucker fish of some sort) and am trying to get smart on proper care for the fish. He's had these fish for a couple of years now, so these aren't juveniles any more (so maybe they won't get any bigger? one of the sharks is only 2 inches).

For some reason the rainbow sharks all get along - although the small does get quite a work out being chased around everywhere. I'm not sure if the friendship will continue, their behavior has become more aggressive as I added a heater to the tank.

My big concern is the poor silver dollar - he just sits and mopes in the corner all day. I'd like to add two more silver dollars to the tank so that they could school and hopefully become a little less timid, but I'm concerned that'd crowd the tank too much. The math using the 1 inch per 1 gallon rule shows that this arrangement might get two crowded, but I'm thinking there'd be a positive trade-off from schooling that would make it worthwhile. What do ya'll think?


On the other hand, I've already browsed craigslist for bigger tanks...

Thanks!
 
Callum The Cat
  • #2
I just inherited a fish tank from a friend who is moving (30g, 1 silver dollar, 3 rainbow sharks, 1 small sucker fish of some sort) and am trying to get smart on proper care for the fish. He's had these fish for a couple of years now, so these aren't juveniles any more (so maybe they won't get any bigger? one of the sharks is only 2 inches).

For some reason the rainbow sharks all get along - although the small does get quite a work out being chased around everywhere. I'm not sure if the friendship will continue, their behavior has become more aggressive as I added a heater to the tank.

My big concern is the poor silver dollar - he just sits and mopes in the corner all day. I'd like to add two more silver dollars to the tank so that they could school and hopefully become a little less timid, but I'm concerned that'd crowd the tank too much. The math using the 1 inch per 1 gallon rule shows that this arrangement might get two crowded, but I'm thinking there'd be a positive trade-off from schooling that would make it worthwhile. What do ya'll think?


On the other hand, I've already browsed craigslist for bigger tanks...

Thanks!

silver dollars always prefer to be in little schoo,ls if possible so it would be a good idea

Peace Out Callum!
 
COBettaCouple
  • #3
Check planet catfish for help in ID'ing your pleco and/or post a pic of him here in the Fish ID forum and then you'll know his needs, etc. If you have a common pleco, he might need a new home since 30 gallon is below the 55 gallon they need. I think you could add a couple silver dollars o make that lonely one happy. Just keep up with water changes and tank cleaning so that the water chemistry doesn't go bad on you.
 
Kevin
  • #4
Check planet catfish for help in ID'ing your pleco and/or post a pic of him here in the Fish ID forum and then you'll know his needs, etc. If you have a common pleco, he might need a new home since 30 gallon is below the 55 gallon they need. I think you could add a couple silver dollars o make that lonely one happy. Just keep up with water changes and tank cleaning so that the water chemistry doesn't go bad on you.

you could also trade 2 sharks for 2 silver dollars...if your LFS would let you
 
Astaroth
  • Thread Starter
  • #5
Thanks for the advice!

I'll go ahead and buy some young silver dollars for the school and keep the sharks for now (too much attachment already).

But I'll probably upgrade tanks once the silver dollars grow a little. Already saw a tempting used 65 gal tank for only $70...
 
COBettaCouple
  • #6
Thanks for the advice!

I'll go ahead and buy some young silver dollars for the school and keep the sharks for now (too much attachment already).

But I'll probably upgrade tanks once the silver dollars grow a little. Already saw a tempting used 65 gal tank for only $70...

where?!
 
0morrokh
  • #7
I'm not sure I would trust a tank for that cheap...it must have a leak or something...
 
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Astaroth
  • Thread Starter
  • #8
craigslist.com

in fact, check out this deal: 125 gallons for $100




too bad that tank would mean the fish have a bigger habitat than me.


(I'll have the seller fill up the tank with water before I buy it, of course.. and if there is a leak, I can't imagine it would cost that much to fix)
 
COBettaCouple
  • #9
that would be a nice deal.. so we wouldn't have a bed anymore, but we'd have a nice big tank. quite often leaks can mean a tank is no longer usable for fish and at best would need a panel replaced, but a friend of ours has a 30 gallon they just wanted to get rid of because they moved and had no room for it.. things like that and people who get out of fishkeeping result in some great deals. a water test is good, but these listings are certainly worth checking out.
 
Kevin
  • #10
I saw an ad in my newspaper for a 55 gal. with a stand and cover for $300
...but I will have to restrain my MTS...for the time being...i'm gonna get a 5gal hex, and use it for 1 betta and 1-2 corys
 
0morrokh
  • #11
I saw an ad in my newspaper for a 55 gal. with a stand and cover for $300
...but I will have to restrain my MTS...for the time being...i'm gonna get a 5gal hex, and use it for 1 betta and 1-2 corys

Make sure you get at least 2 Cories, since they like friends.
 
Kevin
  • #12
so much for restraining the MTS... ;D
I went out and bought the eclipse 5 gal. today, just got it set up with seashells and fake plants, and i'm already anxious to add fish

to decide which fish to get, i'm going to start a poll in the polls thread...make sure you vote!!!!!
 
COBettaCouple
  • #13
there is no stopping the MTS.. we're getting tank #10 (a 30 gallon that a friend is giving away) on monday and 7 months ago we had 1 10 gallon tank.. we've got a variety of sizes & shapes and pretty much if it's a tank and we can find a place for it, we'll take it.
 
Kevin
  • #14
yeah...if anybody in my area is giving away a tank...i'll be the first won to take it off their hands ;D
 
Astaroth
  • Thread Starter
  • #15
thanks for all the advice.. I got him three little silver dollar friends.. they're schooling (for the most part - sometimes the new guys ditch him), but his behavior hasn't really improved.. in fact, he has even more of a tendency to freak out and and run around the tank ramming himself into everything. all the chemical readings for the tank look good, so I'm puzzled as to what could be causing him to continue to behave so poorly
 
COBettaCouple
  • #16
do you have a pic of him? does he have any visible signs or symptoms? he sounds like he's got internal parasites. if he does parasite clear would be in order.
 
Astaroth
  • Thread Starter
  • #17
hmmm.. no visible physical symptoms that I can detect or connect to any of the fish illness articles and posts I've read here.. not sure I want to throw medicine in the tank without a diagnosis (or maybe it's ok?). I wonder if there's a dietary change I can try.

another behavioral oddity is very passive eating behavior - one of the new SDs that's 1/4 his size totally puts him to shame at feeding time.

sadly, I don't have a camera these days.. the marketing person who wrote "ideal pocket-size camera" should've added "so check your pockets before you wash your jeans"

i'll go do some more research on internal parasites, thanks!
 
COBettaCouple
  • #18
VitaChem daily and NovAqua+ would be good when you're not sure of a diagnosis.. and garlic guard.. to strengthen the fish and generally work on improving their overall health and immune system.
 
Astaroth
  • Thread Starter
  • #19
cool - I'll give that a shot if his behavior doesn't improve in a couple more days.. for now, I planted the tank with a bunch of java fern and java moss (since I've heard that the SDs might ignore these plants).. their overall behavior seems to have improved since adding the live plants, but it looks like the plants will end up losing the battle in the long run.. even the moss started to get nibbled on
 

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